Model comparison
GPT-5.2 Pro vs o1-mini
GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 33.7 on the Noometry Index.
Last verified . 4 shared benchmarks.
Summary
- They share 4 benchmarks with published results for both. GPT-5.2 Pro scores higher in 2 categories and o1-mini in 0 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.2 Pro leads 51.8 to 8.9.
- The biggest single-benchmark swing is ARC-AGI-1: 90.5% for GPT-5.2 Pro and 14% for o1-mini.
Side by side
| GPT-5.2 Pro | o1-mini | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Noometry Index | 52.2 | 33.7 |
| Released | 2025-12-11 | 2024-09-12 |
| Weights | Proprietary | Proprietary |
| Context window | 400K | — |
| Max output | 128K | — |
| Input $ / M tokens | $21 | — |
| Output $ / M tokens | $168 | — |
| Results tracked | 8 | 39 |
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Category by category
Coding Not comparable
GPT-5.2 Pro: —, o1-mini: 35.1 (#218)
| Benchmark | GPT-5.2 Pro | o1-mini |
|---|---|---|
| Aider Polyglot | — | 32.9% |
| WeirdML | — | 36.3% |
| LiveBench Coding | — | 48% |
| LMArena Coding | — | 1362 |
| HumanEval+ | — | 89% |
| MBPP+ | — | 78.8% |
Agentic & Tool Use Not comparable
GPT-5.2 Pro: —, o1-mini: 24.3 (#112)
| Benchmark | GPT-5.2 Pro | o1-mini |
|---|---|---|
| Cybench | — | 10% |
Reasoning GPT-5.2 Pro leads
GPT-5.2 Pro: 51.8 (#31), o1-mini: 8.9 (#340)
| Benchmark | GPT-5.2 Pro | o1-mini |
|---|---|---|
| ARC-AGI-2 | 54.2% | 0.8% |
| SimpleBench | 57.4% | 18.1% |
| ARC-AGI-1 | 90.5% | 14% |
| Epoch Capabilities Index | 155.41 | 135.82 |
| NYT Connections (extended) | 79.3% | — |
| LiveBench Reasoning | — | 72.3% |
| LMArena Hard Prompts | — | 1333 |
| LiveBench Data Analysis | — | 57.9% |
| LiveBench | — | 57.8% |
Math GPT-5.2 Pro leads
GPT-5.2 Pro: 64.8 (#23), o1-mini: 33.7 (#168)
| Benchmark | GPT-5.2 Pro | o1-mini |
|---|---|---|
| FrontierMath (Tiers 1-3) | 74% | — |
| FrontierMath Tier 4 | 46% | — |
| OTIS Mock AIME 2024-2025 | — | 46.9% |
| LiveBench Math | — | 62% |
| LMArena Math | — | 1358 |
| MATH Level 5 | — | 89.2% |
| FrontierMath (Feb 2025 set) | — | 1.7% |
| FrontierMath Tier 4 (v1) | 31.3% | — |
Knowledge Not comparable
GPT-5.2 Pro: —, o1-mini: 34.8 (#180)
| Benchmark | GPT-5.2 Pro | o1-mini |
|---|---|---|
| GPQA Diamond | — | 62.4% |
| Confabulations | — | 18.6% |
| LMArena Expert | — | 1316 |
Multilingual Not comparable
GPT-5.2 Pro: —, o1-mini: 43.8 (#177)
| Benchmark | GPT-5.2 Pro | o1-mini |
|---|---|---|
| LMArena Non-English | — | 1289 |
| LMArena Chinese | — | 1314 |
| LMArena French | — | 1292 |
| LMArena German | — | 1278 |
| LMArena Japanese | — | 1245 |
| LMArena Korean | — | 1223 |
| LMArena Russian | — | 1283 |
| LMArena Spanish | — | 1302 |
Instruction Following Not comparable
GPT-5.2 Pro: —, o1-mini: 67.0 (#200)
| Benchmark | GPT-5.2 Pro | o1-mini |
|---|---|---|
| LiveBench Instruction Following | — | 65.4% |
| LMArena Instruction Following | — | 1304 |
Long Context Not comparable
GPT-5.2 Pro: —, o1-mini: 40.1 (#156)
| Benchmark | GPT-5.2 Pro | o1-mini |
|---|---|---|
| LMArena Longer Query | — | 1321 |
Writing & Preference Not comparable
GPT-5.2 Pro: —, o1-mini: 48.6 (#196)
| Benchmark | GPT-5.2 Pro | o1-mini |
|---|---|---|
| LMArena Text | — | 1317 |
| LMArena Creative Writing | — | 1244 |
| Short-Story Creative Writing | — | 64.9% |
| LMArena Multi-Turn | — | 1314 |
| LiveBench Language | — | 40.9% |
Frequently asked questions
Is GPT-5.2 Pro better than o1-mini?
GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 33.7 on the Noometry Index.
How many benchmarks do GPT-5.2 Pro and o1-mini share?
4 benchmarks have published results for both models. GPT-5.2 Pro has 8 scored results on Noometry and o1-mini has 39.